The reciprocal class of double-crossover phenotypes represents the greatest proportion of the f2 offspring. the reciprocal class of double-crossover phenotypes represents the greatest proportion of the f2 offspring. a. true b. false

italy's population growth rate is almost at zero, the national statistics agency, istat, said on monday, mainly due to a dwindling birth rate.

i think a) betsy can donate only blood to mark is correct because, mark and betsy have the same blood type. whereas nobody else has b+ blood so betsy can't donate to them.